I'm not really sure...sometimes there are cracks and die breaks in the stalks, that could be what you are seeing... Can you describe what it is exactly that you are observing?
here is the other side-- notice the top of the stalk. bottom pic on first thread will zoom to compare--BILL
I don't see the top of the stalk in either pic. I do see the 'T' though. What's that at the top of it? MD or DDR?
I thing it's just the design and nothing more and the pic it's hard to see what's really going on. Bill Somers